JP5624356B2 - lighting equipment - Google Patents

Description

  The present invention relates to a lighting fixture, and more particularly to a ceiling-mounted lighting fixture.

  BACKGROUND ART Conventionally, a hanging rosette for a lighting fixture that is attached to a ceiling surface has been provided (see, for example, Patent Document 1). This hook rosette is formed in a thin disk shape, and includes an instrument body composed of an instrument case in which an electric wire connector is housed and a plate-like fixture that closes the opening of the instrument case. It is attached to the ceiling surface using fixing screws. Then, when the lighting fixture is attached to the hanging rosette attached to the ceiling surface, the wire connecting tool of the hooking rosette and the hooking blade of the lighting fixture are electrically connected to each other. A predetermined power is supplied to the luminaire via the plug blade, and the light source is turned on.

Japanese Patent Laid-Open No. 5-298908 (paragraph [0008] -paragraph [0009] and FIG. 1)

  When constructing the hanging rosette shown in the above-mentioned Patent Document 1 on the ceiling surface, after attaching the fixture to the ceiling surface by inserting the wire previously wired on the ceiling surface through the insertion hole provided in the fixture, Since the electric wire is connected to the electric wire connector accommodated in the case and the instrument case is finally attached to the fixture, the workability is poor and the construction time is long.

  Moreover, in the above-mentioned hanging rosette, since the wire connector to which the electric wire is connected is housed in the fixture case, it is necessary to increase the thickness dimension of the fixture case, and as a result, the ceiling when the lighting fixture is attached. The amount of protrusion from the surface was large.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to provide a lighting fixture that is improved in workability while being thinned.

In the lighting fixture of the present invention, a light source and a power supply block that supplies power to the light source are housed inside, the fixture main body that is attached to the mounted portion, and the electrical connection to the input side of the power supply block, A quick-connect terminal portion to which an external electric wire inserted from an electric wire insertion hole that is open is electrically connected, and the instrument body has a cylindrical portion that protrudes toward the attached portion in the attached state. at least a portion of the quick connect terminal portions into the cylinder is housed, and first the and the wire insertion hole is provided on one side with respect to a plane including the central axis of the cylindrical portion in the cylinder of the cylindrical portion, the cylindrical The portion has a step portion formed between a first bottom portion in which a pair of electric wire insertion holes are provided side by side and a second bottom portion whose distance to the opening end of the cylindrical portion is shorter than the first bottom portion. and said that you are.
In this lighting fixture, it is preferable that the first bottom portion has a protruding wall portion that protrudes toward the opening end side of the cylindrical portion between the pair of electric wire insertion holes.

  The lighting apparatus includes a release means for releasing the connection state between the external electric wire and the quick connection terminal portion, and the release means is arranged to be slidable in a first direction intersecting the central axis of the cylindrical portion. It is preferable that the connection state between the external electric wire and the quick connection terminal portion is released by sliding the means in the first direction.

  There is an effect that it is possible to provide a lighting fixture that is improved in workability while being thinned.

It is sectional drawing which looked at the cover part which comprises the lighting fixture of this embodiment from the side. It is an exploded perspective view same as the above. It is an external appearance perspective view same as the above. It is a disassembled perspective view of the cover part which comprises the same as the above. It is a cross-sectional perspective view of the cover part which comprises the same as the above. The cover part which comprises the same is shown, (a) is a top view, (b) is another sectional view seen from the side.

  Embodiment of the lighting fixture which concerns on this invention is described based on FIGS. The luminaire according to the present invention is attached to, for example, a ceiling surface (attached portion) and used to illuminate an illumination space such as a room.

  As illustrated in FIG. 2, the lighting fixture A of the present embodiment includes a light source unit 4 and a power source block 7 that supplies power to the light source unit 4. Are electrically connected to the input side, and core wires of external electric wires (not shown) inserted through electric wire insertion holes 11c and 11c (see FIG. 6A) described later are electrically connected. A pair of quick connection terminal portions 9 and 9 (see FIG. 4) is provided.

  Moreover, the lighting fixture A is arrange | positioned in the heat radiation part 3 which radiates the heat | fever emitted from the light source part 4, and the front (lower side in FIG. 2) of the light source part 4, and diffuses the light radiated | emitted from the light source part 4. The lens cover 5 which reduces brightness unevenness by this, and the globe 6 arrange | positioned ahead of the lens cover 5 are provided.

  As shown in FIG. 2, the light source unit 4 includes a printed circuit board 40, and a plurality of light emitting diodes (LEDs) are mounted on one surface (the lower surface in FIG. 2) of the printed circuit board 40. That is, in the present embodiment, the light source is configured by a plurality of light emitting diodes mounted on the printed circuit board 40. In addition, a cutout groove 40 a is provided at the edge of the printed circuit board 40 for releasing an internal electric wire (not shown) that is electrically connected to the output side of the power supply block 7.

  The heat dissipating part 3 includes a horizontally long heat dissipating plate 30 made of a metal material having high heat conductivity (for example, aluminum or copper), and both ends of the heat dissipating plate 30 in the longitudinal direction (left-right direction in FIG. 2) Screw insertion holes 30a and 30a through which attachment screws (not shown) for attaching the heat radiating plate 30 to the instrument body 16 are inserted are provided. Further, the heat radiating plate 30 is provided with a cable insertion hole 30b through which the internal electric wire is inserted in a portion corresponding to the notch groove 40a of the printed board 40. Note that an insulator (for example, aluminum nitride, silicon nitride, etc.) having high thermal conductivity is provided on one surface (the lower surface in FIG. 2) of the heat radiating plate 30, and insulation from the printed circuit board 40 by this insulator. Is secured.

  The lens cover 5 is a molded product made of a resin excellent in light diffusibility, and is formed in a lid shape having an open rear side (upper side in FIG. 2). Screw insertion holes 5 a and 5 a through which the mounting screws are inserted are respectively provided at both left and right edges of the lens cover 5, and are screwed to the instrument body 16 together with the heat radiating plate 30.

  The globe 6 is composed of a large-diameter portion 60 made of a cylindrical body having both ends opened in the front-rear direction (vertical direction in FIG. 2) and a cylindrical body having both ends opened in the front-rear direction. The small-diameter portion 61 has a small diameter, and a screw portion 61 a is formed on the outer peripheral surface of the small-diameter portion 61. And the glove 6 is attached to the instrument main body 16 by screwing the screw part 61a provided in the small diameter part 61 into the screw part (not shown) provided in the instrument main body 16 side (see FIG. 3). .

  As shown in FIG. 2, the power supply block 7 includes a printed circuit board 70. On one surface (the upper surface in FIG. 2) of the printed circuit board 70, a plurality of circuit components (for example, switching elements and capacitors) constituting the power supply circuit. 71 is mounted. In the present embodiment, since the light source is a light emitting diode, DC power having a predetermined voltage value is output from the output terminal of the power supply block 7.

  Next, the instrument body 16 will be described. As shown in FIG. 2, the instrument main body 16 includes a main body 2 and a lid 1 attached to the main body 2 so as to close the opening 2 a on the rear surface side (upper side in FIG. 2) of the main body 2. Composed. Both the lid 1 and the main body 2 are made of a synthetic resin molded product.

  The main body 2 is formed of a cylindrical body that opens at both ends in the front-rear direction (vertical direction in FIG. 2), and mounting screws 13 and 13 for attaching the lid 1 to the opening edge of the opening 2a on the rear surface side. Screw holes (not shown) into which are inserted are provided on both sides with the opening 2a in between. In addition, screw opening holes 2b and 2b through which mounting screws (not shown) for attaching the luminaire A to the ceiling surface are inserted at the opening edge of the opening 2a on both sides with the opening 2a in between. Is provided.

  On the other hand, the lid portion 1 includes a lid body 10 formed in a horizontally long plate shape as shown in FIG. 2 and a cylindrical portion 11 integrally formed at the center of the upper surface of the lid body 10. Three recesses 10b are provided side by side at both ends in the longitudinal direction (left and right direction in FIG. 2) of the lid body 10, and further, mounting screws 13 are provided at the bottoms of the center recesses 10b and 10b, respectively. Screw insertion holes 10c, 10c through which 13 is inserted are provided. Further, in the lid body 10, a rectangular release hole 10 a into which a jig such as a minus driver is inserted when a release button 12 described later is operated is provided near the cylindrical portion 11. In addition, said cylindrical part 11 is formed in the taper shape so that an opening diameter becomes small as it goes upwards.

In the cylinder of the cylindrical portion 11, a step portion 11a (second bottom portion) is provided as shown in FIGS. As shown in FIG. 6A, the step portion 11a is formed so that the shape of the bottom portion 11b (first bottom portion) in a top view is a semicircular shape that occupies about 2/3 of the inner surface of the cylindrical portion 11. The bottom portion 11b is provided with a pair of wire insertion holes 11c and 11c into which core wires of external wires (not shown) are inserted. Furthermore, an insulating wall 11d protruding upward (in a direction perpendicular to the paper surface in FIG. 6A) is provided between the electric wire insertion holes 11c and 11c in the bottom portion 11b. The insulation between the core wires inserted into the insertion holes 11c and 11c can be secured. In this embodiment, the width dimension (the dimension in the left-right direction in FIG. 6A) of the bottom portion 11b of the step portion 11a is set to be approximately the same as the outer diameter dimension of the external electric wire. When an external electric wire is inserted into the cylinder, the external electric wire is guided by the inner wall of the cylindrical portion 11 and the vertical wall of the step portion 11a, so that the electric wire can be easily inserted into the cylinder and workability is improved. There are advantages.

  Here, FIG. 1 and FIG. 6B are cross-sectional views of the lid portion 1 as viewed from the side, and P1 in the figure indicates the central axis of the cylindrical portion 11. That is, in the present embodiment, the electric wire insertion hole 11c is on one side with respect to the first plane (a plane perpendicular to the paper surface in FIGS. 1 and 6B) including the central axis P1 of the cylindrical portion 11. (Left side in FIGS. 1 and 6B). As a result, the storage space for the quick connection terminal portion 9 in the cylinder of the cylindrical portion 11 can be increased. In addition, P2 in a figure has shown the central axis of the electric wire insertion hole 11c.

  Next, the quick connection terminal portion 9 will be described. The quick connection terminal portion 9 is made of a metal material having elasticity (for example, copper) and has a rectangular plate-shaped main piece 90 as shown in FIG. 4, and the upper end edge of the main piece 90 is inclined obliquely downward. A locking piece 91 is bent. Further, a projecting piece 92 projecting sideways is formed at the front end edge of the main piece 90, and by inserting a core wire of an external electric wire between the projecting piece 92 and the locking piece 91, a chain is formed. The core wire is locked by the lock piece 91. Furthermore, a release piece 93 that is pressed when releasing the locked state of the core wire by the lock piece 91 is integrally provided at the distal end portion of the lock piece 91, and this release piece 93 is rearward (projection piece). (In a direction away from 92), the distance between the locking piece 91 and the protruding piece 92 is widened, and the locking by the locking piece 91 is released. Here, in the present embodiment, the locking piece 91 and the projecting piece 92 constitute a quick connection terminal 94.

  Each fast connection terminal portion 9 is integrally provided with a connection terminal portion 15 to which the other end side of an internal electric wire (not shown) whose one end side is connected to the input side of the power supply unit 7 is connected. The connection terminal portion 15 includes a connection terminal 151 having a so-called quick connection terminal structure to which the internal wires are connected, and a connection piece 152 that connects the connection terminal 151 and the main piece 90 of the quick connection terminal portion 9. It is formed in a substantially L shape. The connecting terminal 151 is formed with a horizontally long plate-like locking piece 151 a by cutting and raising the locking piece 151 a by inserting the core wire of the internal electric wire between the locking piece 151 a and the connecting piece 152. As a result, the core wire is locked. Moreover, in order to cancel the locked state by the locking piece 151a, the locking piece 151a is pressed inward (the quick connection terminal portion 9 side) to increase the distance between the locking piece 151a and the connecting piece 152. Is done.

  The release button 12 has a button body 12a formed in a horizontally long rectangular parallelepiped shape as shown in FIG. 4, and at both ends in the longitudinal direction of the button body 12a, pressing pieces 12b projecting toward the quick connection terminal portion 9 are provided. 12b is provided integrally. Then, by pressing the corresponding release piece 93 of the quick connection terminal portion 9 by the pressing pieces 12b, 12b, the connection state between each core wire of the external electric wire and the corresponding quick connection terminal 94 can be released.

  Next, the terminal cover 8 in which the above-described quick connection terminal portion 9, the connection terminal portion 15, and the release button 12 are stored will be described. The terminal cover 8 is a synthetic resin molded product formed in a box shape with one surface (upper surface in FIG. 4) open, and each connection terminal portion 15, 15 is provided on one end side in the longitudinal direction (left side in FIG. 4). Are accommodated symmetrically. When the connection state between the electric wire insertion hole 80 a into which the internal electric wire is inserted and the internal electric wire inserted from the electric wire insertion hole 80 a and the connection terminal 151 of the connection terminal portion 15 is released on the side wall of each terminal storage portion 80. Release holes 80b into which jigs are inserted are provided side by side. That is, in this embodiment, the internal electric wire connected to the connection terminal 151 is inserted into the electric wire insertion hole 80a from the direction (that is, the side) intersecting the mounting direction (vertical direction in FIG. 4) of the instrument body 16 on the ceiling surface. Is inserted.

  On the other hand, on the other end side in the longitudinal direction of the terminal cover 8, there is provided a terminal storage portion 81 in which the quick connection terminal portions 9 and 9 and the release button 12 are stored. A mounting piece 82 having a screw insertion hole 82a through which the mounting screw 14 is inserted is provided at the center. And after attaching the terminal cover 8 which accommodated the quick connection terminal part 9, the connection terminal part 15, and the cancellation | release button 12 in said predetermined position to the cover part 1 from the lower surface side, it is inserted in the screw insertion hole 82a provided in the attachment piece 82. By screwing the inserted mounting screw 14 into the screw hole of the screw portion 10d provided on the back surface of the lid portion 1, the lid portion 1 and the terminal cover 8 are assembled together (see FIGS. 1 and 5B). ). An attachment means (not shown) is provided on one end side of the terminal cover 8 in the longitudinal direction, and the terminal cover 8 is fixed to the lid portion 1 by this attachment means and the attachment piece 82 described above.

  In the state where the terminal cover 8 is assembled to the lid portion 1, as shown in FIG. 6 (b), a part of each fast connection terminal portion 9 is accommodated in the cylinder of the cylindrical portion 11, and each fast connection terminal 94 ( The locking piece 91 and the protruding piece 92) are arranged so as to face the corresponding wire insertion holes 11c. In FIG. 6B, only the quick connection terminal portion 9 on one side is shown.

  Further, the release button 12 is disposed so as to be movable back and forth with respect to the quick connection terminal portion 9 (movable in the left-right direction in FIG. 6B and this direction is the first direction), When a jig is inserted from the release hole 10a provided in the lid body 10 and the release button 12 is moved to the right side, the corresponding release piece 93 is pushed to the right side by each pressing piece 12b. Accordingly, each locking piece 91 also moves to the right, so that the interval between each locking piece 91 and the corresponding protruding piece 92 is widened, and the locked state of the core wire by the locking piece 91 is released. When the jig inserted into the release hole 10a is removed, the release button 12 is returned to the original position by the spring reaction force from the release pieces 93, 93.

  Next, the assembly procedure of the lighting fixture A of this embodiment and the construction procedure to a ceiling surface are demonstrated, referring FIG.2, FIG.3 and FIG.6 (b). In the following description, it is assumed that the quick connection terminal portion 9, the connection terminal portion 15, and the release button 12 are assembled to the lid portion 1 together with the terminal cover 8 and the output side of the light source portion 4 and the power supply block 7. And between the input side of the power supply block 7 and the connection terminal 151 of the connection terminal portion 15 are respectively connected by internal wires (not shown). Moreover, in FIG.6 (b), only the cover part 1 is shown in figure, and the main-body part 2, the globe 6, etc. are abbreviate | omitting illustration.

  First, the heat sink 3, the light source 4, and the lens cover 5 assembled in this order from the upper side are attached to the main body 2 from the lower side using mounting screws (not shown), and the main body through the opening 2 a. 2, after the power supply block 7 is housed, the lid 1 is attached to the main body 2 using the mounting screws 13 and 13. Next, each core wire of the external wire previously wired on the ceiling surface 17 is inserted from the corresponding wire insertion hole 11 c of the cylindrical portion 11 and connected to the quick connection terminal 94. At this time, by inserting the external electric wire along the step portion 11a provided in the cylinder of the cylindrical portion 11, the external electric wire can be easily guided to the bottom portion 11b in which the electric wire insertion holes 11c and 11c are formed. There is an advantage that workability is improved.

  Then, after attaching the instrument body 16 to the ceiling surface 17 using a mounting screw (not shown), the screw part 61a provided on the small diameter part 61 of the globe 6 is screwed into a screw part (not shown) provided on the body part 2, When the globe 6 is attached to the main body 2, the assembly of the lighting fixture A and the attachment to the ceiling surface 17 are completed. When the lighting fixture A is attached to the ceiling surface 17, the cylindrical portion 11 is embedded in an embedded hole 17 a provided in the ceiling surface 17, and the upper surface of the lid portion 1 and the ceiling surface 17 are in contact with each other. (See FIG. 6B).

  When removing the lighting fixture A attached to the ceiling surface 17, after removing the globe 6 from the main body 2, the mounting screws are loosened to remove the fixture main body 16 from the ceiling surface 17. After that, when the external electric wire is pulled out with a jig inserted into the release hole 10a provided in the lid body 10 and the connection state between each core wire and the corresponding quick connection terminal 94 is released, the removal of the lighting fixture A is completed. .

  Here, the hole diameter of the embedded hole 17a provided in the ceiling surface 17 is preferably set to about φ20 mm in consideration of the strength and workability of the ceiling material. Therefore, the outer diameter of the cylindrical portion 11 is slightly smaller than φ20 mm. It is better to set it to a small size.

  Thus, according to the present embodiment, the core wires of the external wires previously wired on the ceiling surface (attached portion) 17 are provided from the wire insertion holes 11 c and 11 c provided in the cylinder of the cylindrical portion 11 of the lid portion 1. It is only necessary to insert and connect to the corresponding quick connection terminals 94, 94, and when attaching the lighting fixture A to the ceiling surface 17, the cylindrical portion 11 is inserted into the embedded hole 17 a provided in the ceiling surface 17. Therefore, it is possible to easily perform positioning on the site, so that the workability on site can be improved and the construction time can be shortened. In particular, in the present embodiment, since the cylindrical portion 11 is formed in a tapered shape, insertion into the embedded hole 17a is facilitated, and as a result, there is an advantage that workability is further improved. Further, since a part of the quick connection terminal portion 9 is accommodated in the cylinder of the cylindrical portion 11, a space for accommodating the remaining portion of the quick connection terminal portion 9 can be reduced, and as a result, the thickness dimension of the instrument body 16 is reduced. The lighting fixture A can be made thinner. Furthermore, in the present embodiment, in the cylinder of the cylindrical portion 11, the electric wire insertion hole 11c is shifted on one side with respect to the first plane including the central axis P1 of the cylindrical portion 11, so that quick connection is achieved. The space in the cylinder that accommodates the terminal portion 9 can be increased, and as a result, the thickness dimension of the lighting fixture 16 can be further reduced, and the lighting fixture A can be further reduced in thickness.

  Moreover, since the accommodating part (cylindrical part 11) provided in the cover part 1 which comprises the instrument main body 16 is cylindrical shape, there also exists an advantage that it is easy to insert the external electric wire whose outer skin is circular. Furthermore, since the cylindrical part 11 is provided in the center position of the fixture main body 16, and the positional relationship between the drilling position of the ceiling surface 17 and the lighting fixture A can be easily grasped, labor during construction can be reduced.

  Moreover, since the connection terminal part 15 is provided inside the cover part 1 which comprises the instrument main body 16, the connection terminal part 15 can be arrange | positioned using the empty space of the main-body part 2, As a result, illumination The appliance A can be further reduced in thickness. Furthermore, when the connection direction of the internal electric wire to the connection terminal portion 15 is the attachment direction to the ceiling surface 17 of the lighting fixture A, a space for allowing the internal electric wire to escape upward is necessary. Therefore, since the connection direction of the internal electric wire to the connection terminal portion 15 is a direction (that is, a side) crossing the mounting direction, the space described above is unnecessary, and as a result, the thickness dimension of the instrument body 16 is reduced. The lighting fixture A can be further reduced in thickness. Further, when the slide direction of the release button 12 is the direction of the central axis P1 of the cylindrical portion 11, the thickness dimension of the instrument body 16 is increased in order to secure the movement space of the release button 12, but according to this embodiment. For example, since the sliding direction of the release button 12 is the first direction intersecting the central axis P1 of the cylindrical portion 11, the thickness dimension of the fixture body 16 can be reduced, and as a result, the lighting fixture A can be made thinner. Can be

  In the present embodiment, the light source is composed of a plurality of light emitting diodes mounted on the printed circuit board 40. However, the light source is not limited to the light emitting diode, and may be, for example, a fluorescent lamp or an incandescent lamp. Good. In the present embodiment, a part of the quick connection terminal portion 9 is accommodated in the cylinder of the cylindrical portion 11, but the entire quick connection terminal portion 9 is accommodated in the cylinder of the cylindrical portion 11. In this case, since the space for housing the quick connection terminal portion 9 is not required on the main body portion 2 side, the lighting fixture A can be further reduced in thickness.

1 Lid 2 Body 4 Light source (light source)
7 Power supply block 9 Fast connection terminal portion 11 Cylindrical portion 11c Electric wire insertion hole 16 Appliance body A Lighting fixture P1 Central axis

Claims (3)

A light source and a power supply block that supplies power to the light source are housed inside, and an instrument body that is attached to the attached portion;
A quick connection terminal portion electrically connected to the input side of the power supply block and electrically connected to an external wire inserted from a wire insertion hole opened on the surface of the instrument body;
The instrument body has a cylindrical portion that protrudes toward the attached portion in the attached state, and at least a part of the quick-connection terminal portion is accommodated in a cylinder of the cylindrical portion, and in the cylinder of the cylindrical portion The wire insertion hole is provided on one side with respect to the first plane including the central axis of the cylindrical portion ,
The cylindrical portion is formed between a first bottom portion in which a pair of the wire insertion holes are provided side by side and a second bottom portion whose distance to the opening end of the cylindrical portion is shorter than the first bottom portion. The lighting fixture characterized by having a part . Before Symbol first bottom luminaire according to claim 1, characterized in that it has a projecting wall portion protruding to the opening end side of the cylindrical portion between the pair of the electric wire insertion hole. Release means for releasing the connection state between the external electric wire and the quick connection terminal portion,
The release means is slidably arranged in a first direction intersecting the central axis of the cylindrical portion, and the external electric wire and the quick connection terminal portion are slid by sliding the release means in the first direction. The lighting apparatus according to claim 1, wherein the connection state is released.

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